Improvement in elastic links for hammer-connections



e.- CURKE'NDALL abs-1mm. ELASTIC LINKS Fo-n HAMMER CONNECTIONS.No.174=;4 =93. Patented March 7,1876.

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N-FETERB, PHOTO-UTHOGRAPHEIL WASHINGTON D C UNITED STATES PATENT OFFICE.

GEORGE OURKENDALL AND JULIUS EMEIS, OF DAVENPORT, IOWA.

IMPROVEMENT IN ELASTIC LINKS FOR'HAMMER-CONNECTIONS.

Specification forming part of Letters Patent No. 174.493, dated March 7,1876; application filed February 1, 1876. I

To all whom it may concern:

Beit known that we, GEORGE 0U RKENDALL and JULIUS EMEIs, of Davenport,county of Scott and State of Iowa, have invented certain Improvements inDrop -Hammers, of which the following is a full, clear, and exactdescription, reference being had to the annexed drawing, making a partof this specification,

and to the letters and figures of reference marked thereon.

Figure 1 in the accompanying drawing is a. perspective VlB W, Fig. 2 avertical central 7, sectional view, and Fig. 3 a side elevation,

of adevice embodying our invention.

This invention relates to improvements in the construction of thehamm'er'straps of drophammers; and consists, first, in making thehammer-strap in two pieces, united by a i threaded rod and nuts, and bymeans of which the length of the strap may be adjusted as of which issecured in each of the adjacent ends, A, of thehammer-strap, which endsare bifurcated to receive and retain them securely inplace. (3 is a rod,which passes through the blocks B,rand is threaded at its ends,

For the purpose of holding the parts more securely in place, a recessmay be made in the block B, to receive the spring D some distance, i

and the washers E, may have annular flanges to extend down the sides ofthe rubber springs D, as shown by dotted lines at Fig. 1.

It will be seen that, by adjusting the nuts 0 c on the rod 0, thelength'of the hammerstrap may be adjusted for diflerent thicknesses ofdies when. used, and that the'great strain on the hammer-strap, arisingfrom the sudden jerk (more especially common to drop-hammers in whichthe, hammer is raised by a crank) at the moment the force is applied toraise the hammer, will be relieved by the springs D.

We claim- 1. The screw-rod 0, arranged to operate with the blocks B andends A of adrop-hammer strap, for adjusting its length, substantially asand for'the purpose specified.

2. The rods 0 and springs D, arranged to operate with the blocks B andends A of. the ham mer-strap, for relieving the jerking strain on thesame, substantially as and for the purpose specified.

GEORGE OURKENDALL. JULIUS EMEIS.

Witnesses: H. H. BENSON L. J. BROWN.

